{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55430",
    "entityType": "User",
    "nonce": "0x9d32d8821437b4ddee986c938fd5d7c96b89707bf6179de9551ba98679d83131",
    "signature": "0x38085bb0f14e19df6fdd3d504525a5de52fffc0dd76bdb720ce7c6efbbdb0ac40f071600f26682d25620730320c647921546ff75e52ef5459f4c43b7e9daa9ff1b",
    "signer": "0xD4075518293370C8887D8dd80B16bc683A59D633",
    "userId": "743640235"
  }
}