{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0xe6098540e3e73b605aadb40d94c1a6c6e076e2cec3d8b1971fdb53f7e2a4195c",
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    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}