{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "366470",
    "entityType": "User",
    "nonce": "0xe41d9137ef6c3c581fd029f68672b39a49e870c296965851086bbb89fac88c44",
    "signature": "0xa12bfcb7194dc58833d1f648dbf0da5f7c23c0110b8e397c94dfa1f5176d21fd6726bf69997346e40f396fa94e7c1974600255ba51e24def68c8d325c7203b171c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}