{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xe34188a086e4a8576f7c58db292b55020296c030c5d41c4c192d0bf708a20caa",
    "signature": "0x6377c31d0c0cb6400390cfeb2c181a9c4295d3860d965f6fe048fe200a516ae7190e3feb1b6845cf8792adbbf53307e4738854e344d4f335f42a78b2afea72c51b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}