{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0x8020a488233b2863727bf591712305fcb22ddd05b349211ca9b7d09fc99c6c10",
    "signature": "0xb1b955b13c4350be0a7dfb55a3ffba1bb7e91e5289829e5881f33d1b4e5f01a45e37715b93e2825e95cb1f99213b19a6feecec100fc7319cedd1781f1b7dfebc1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}