{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141872",
    "entityType": "User",
    "nonce": "0x5706c0356fb0ad8dfb707fe32da481bc81763631656f2633fd6f43440329af3c",
    "signature": "0x5ed036485972f94de9366e0129a8e76892f17714effc23c75bec8144fe2b754a35d56e4e91964a63953d2ff540cf25e3ebaa1907e01062d340930f0021ab83f81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}